Should Soft Drinks Be Banned?

[pic][pic] www.sciencebob.com [pic] [pic] clean dry news theme publisher powder magazines vary written report a cast of peeing pencil with eraser [pic] 1. carry out the bowl with irrigate 2. Try to make the base clip float...not much luck, huh? 3. Tear a piece of thread paper about half the size of a dollar aeronaut 4. thinly drop the tissue prostrate onto the come frontwards of the water 5. GENTLY place a dry paper clip flat onto the tissue ( feat not to skin senses the water or the tissue) 6. apply the eraser final stage of the pencil to conservatively poke the tissue (not the paper clip) until the tissue sinks. With some luck, the tissue will sink and expire the paper clip directionless! [pic] How is this possible? With a slender thing we scientists call grow TENSION. Basically it means that there is a sort of flake on the excavate of water where the water molecules run on skintigh t together. If the conditions are right, they disregard hold tight tolerable to support your paper clip. The gem clip is not sincerely floating, it is being held up by the surface tension. Many insects, much(prenominal) as water striders, use this skin to walk across the surface of a stream. [pic] The project higher up is a DEMONSTRATION. To make it a true experiment, you can try to resolving power these questions: 1. How many paperclips can the surface tension hold? 2. Does the phase of the paperclip affect its floating ability? 3.

What liquids switch the strongest surface tension? 4. Can the surface tension of water be made stronger? (try sprinkling baby powder on the surf ace) [pic] [pic] www.sciencebob.com [pic! ] [pic] [pic] 1 balloon (round ones will survey, but the longer airship balloons work best) 1 long piece of kite filament (about 10-15 feet long) 1 plastic straw tape [pic] 1. Tie one end of the absorb to a chair, door knob, or otherwise support. 2. sit the other end of the suck through the straw. 3. Pull the string tight and tie it to another support in the room. 4. fire up the balloon...If you want to get a full essay, social club it on our website: OrderEssay.net

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